<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>武汉志昆科技有限公司 — AI赋能·数智未来</title>
<meta name="description" content="武汉志昆科技有限公司，成立于2012年，专注AI本地化部署、企业数字化转型、智慧教育解决方案。高新技术企业，为100+客户提供专业软件研发与技术服务。">
<!-- 微信/国内兼容：Google Fonts 常被屏蔽，用系统字体作为主力回落 -->
<style>
  @font-face {
    font-family: 'Inter-fallback';
    src: local('Inter'), local('Helvetica Neue'), local('Arial');
    size-adjust: 105%;
    ascent-override: 90%;
  }
  @font-face {
    font-family: 'Noto-fallback';
    src: local('Noto Sans SC'), local('PingFang SC'), local('Microsoft YaHei'), local('Hiragino Sans GB');
  }
</style>
<link rel="preconnect" href="http://fonts.googleapis.com">
<link rel="preconnect" href="http://fonts.gstatic.com" crossorigin>
<link href="http://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Noto+Sans+SC:wght@300;400;500;600;700;900&display=swap" rel="stylesheet" media="print" onload="this.media='all'; this.onload=null;">
<style>
/* ============================================
   Design Token System — ZKUN Technology
   Theme: 蓝白清明科技风 v2 (Ant Design Blue)
   ============================================ */
:root {
  /* Blue Scale — Ant Design #1677FF */
  --color-blue-900: #001529;
  --color-blue-800: #003A70;
  --color-blue-700: #0958D9;
  --color-blue-500: #1677FF;
  --color-blue-400: #4096FF;
  --color-blue-300: #69B1FF;
  --color-blue-bg: #E6F4FF;

  /* Brand Accent */
  --color-accent: #1677FF;            /* 主色蓝 Ant Design */
  --color-accent-light: #4096FF;      /* 亮蓝 */
  --color-accent-dark: #0958D9;       /* 深蓝 */
  --color-accent-glow: rgba(22, 119, 255, 0.18);
  --color-accent-soft: rgba(22, 119, 255, 0.08);

  /* Accent Colors */
  --color-cyan: #13C2C2;              /* 青蓝 */
  --color-green: #52C41A;             /* 绿 */
  --color-red: #F5222D;               /* 红 */
  --color-red-light: #FF4D4F;
  --color-red-soft: rgba(245, 34, 45, 0.08);
  --color-gold: #C9A96E;              /* 极少金色点缀 */
  --color-gold-light: #D4BC8B;
  --color-gold-glow: rgba(201, 169, 110, 0.18);

  /* Page Background */
  --color-primary: #FFFFFF;
  --color-primary-soft: #F0F2F5;      /* 页面底色 */
  --color-primary-light: #EDF0F4;     /* 浅灰边线 */
  --color-primary-lighter: #E6F4FF;   /* 极浅蓝 */
  
  /* Neutrals — 灰度阶 */
  --color-white: #FFFFFF;
  --color-gray-50: #F0F2F5;           /* 页底 */
  --color-gray-100: #EDF0F4;          /* 边框 */
  --color-gray-200: #DEE2E8;          /* 深边 */
  --color-gray-300: #C4CDD8;          /* 滚动条 */
  --color-gray-400: #8C95A5;          /* 说明文字 */
  --color-gray-500: #5B6B82;          /* 正文 */
  --color-gray-600: #344767;          /* 标题 */
  --color-gray-700: #344767;
  --color-gray-800: #1E293B;
  --color-gray-900: #0F172A;
  
  /* Typography Scale */
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', 'Inter-fallback', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-xs: 0.75rem;      /* 12px — 标签、辅助 */
  --font-sm: 0.8125rem;    /* 13px — 说明文字 */
  --font-base: 0.875rem;   /* 14px — 正文 */
  --font-md: 0.9375rem;    /* 15px — 卡片正文 */
  --font-lg: 1.0625rem;    /* 17px — 引言/副标题 */
  --font-xl: 1.25rem;      /* 20px — 卡片标题 */
  --font-2xl: 1.5rem;      /* 24px — 区块子标题 */
  --font-3xl: 2.25rem;     /* 36px — Hero 数字 */
  --font-4xl: 2.5rem;          /* WeChat 回落 */
  --font-4xl: clamp(2rem, 5vw, 4rem); /* Hero 标题 */
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.06), 0 2px 4px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 30px -8px rgba(15, 23, 42, 0.08), 0 4px 8px -2px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 24px 48px -12px rgba(15, 23, 42, 0.12), 0 8px 16px -4px rgba(15, 23, 42, 0.04);
  --shadow-blue: 0 8px 32px -4px rgba(22, 119, 255, 0.18);
  --shadow-glow: 0 0 40px var(--color-accent-glow);
  
  /* Transitions */
  --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* Container */
  --container-max: 1200px;
}

/* ============================================
   CSS Reset & Base
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;  /* 从源头防止横向滚动 */
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-gray-500);
  background: var(--color-primary-soft);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 全局蓝色光晕背景装饰 */
body::before {
  content: '';
  position: fixed;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(22, 119, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  bottom: -200px;
  left: -200px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(22, 119, 255, 0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

::selection {
  background: var(--color-accent);
  color: var(--color-white);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ============================================
   Utility Classes
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-16) 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.section-label::before {
  content: '';
  display: block;
  width: 2rem;
  height: 1px;
  background: var(--color-accent);
}

.section-title {
  font-size: 2.25rem;                       /* WeChat/旧浏览器回落 */
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-gray-900);
  margin-bottom: var(--space-6);
}

.section-title .gold { color: var(--color-gold); }
.section-title .accent { color: var(--color-accent); }

.section-desc {
  font-size: var(--font-lg);
  color: var(--color-gray-500);
  max-width: 640px;
  width: 100%;           /* 防止宽于视口 */
  line-height: 1.8;
}

/* ============================================
   Navigation — Light Style
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  /* 保证导航栏本身在菜单覆盖层之上 */
  isolation: isolate;
  padding: 1.25rem 0;
  /* 微信兼容：不加 backdrop-filter 时用不透明白底 */
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid rgba(222, 226, 232, 0.8);
  transition: all var(--transition-base);
}
/* 支持 backdrop-filter 的浏览器才叠加毛玻璃效果 */
@supports (backdrop-filter: blur(20px)) or (-webkit-backdrop-filter: blur(20px)) {
  .nav {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(222, 226, 232, 0.5);
  }
  .nav.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    padding: 0.75rem 0;
    box-shadow: 0 1px 0 rgba(222, 226, 232, 0.6), 0 4px 24px rgba(15, 23, 42, 0.04);
  }
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.98);
  padding: 0.75rem 0;
  box-shadow: 0 1px 0 rgba(222, 226, 232, 0.6), 0 4px 24px rgba(15, 23, 42, 0.04);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.logo-icon {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 42px;
  width: auto;
  display: block;
  border-radius: 50%;
  background-color: white;
  box-shadow: 0 4px 12px rgba(22, 119, 255, 0.12);
  transition: transform var(--transition-fast);
}

.logo-icon:hover .logo-img {
  transform: scale(1.05);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-text .zh {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-gray-900);
  letter-spacing: 0.04em;
  line-height: 1.2;
}

.logo-text .en {
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--color-gray-500);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.nav-link:hover { color: var(--color-accent); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.625rem 1.5rem;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: var(--color-white);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px rgba(22, 119, 255, 0.32);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(22, 119, 255, 0.42);
}

/* Mobile menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  /* 足够大的触摸区域 (44×44px 最小) */
  padding: 10px;
  min-width: 44px;
  min-height: 44px;
  /* 保证永不被挤掉，且始终在菜单层之上 */
  flex-shrink: 0;
  z-index: 1001;
  position: relative;
  border-radius: 8px;
  transition: background var(--transition-fast);
}

.nav-toggle:hover,
.nav-toggle:active {
  background: rgba(22, 119, 255, 0.08);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-gray-800);
  border-radius: 2px;
  transition: all var(--transition-fast);
  transform-origin: center;
}

/* 关闭动画 */
.nav.open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav.open .nav-toggle span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav.open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   Hero Section — Light Tech Style
   ============================================ */
.hero {
  position: relative;
  min-height: auto;
  padding-top: 8rem;
  padding-bottom: var(--space-12);
  display: flex;
  align-items: center;
  background:
    radial-gradient(ellipse 100% 60% at 80% 0%, rgba(22, 119, 255, 0.10) 0%, transparent 60%),
    radial-gradient(ellipse 80% 50% at 0% 100%, rgba(64, 150, 255, 0.06) 0%, transparent 55%),
    linear-gradient(180deg, #FFFFFF 0%, var(--color-primary-soft) 60%, var(--color-primary-light) 100%);
  overflow: visible;
  isolation: isolate;
}

/* Hero bottom soft separator */
.hero::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent 0%, rgba(237, 240, 244, 0.5) 100%);
  pointer-events: none;
  z-index: 1;
}

/* Vignette overlay for depth */
.hero .hero-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 60%, rgba(241, 245, 249, 0.4) 100%);
  pointer-events: none;
  z-index: 1;
}

.hero-bg-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

/* Subtle noise texture overlay */
.hero-bg-layer::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Grid pattern — 浅色蓝 */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(22, 119, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 119, 255, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, black 25%, transparent 75%);
}

/* Light rays — 浅色蓝 */
.hero-bg .light-rays {
  position: absolute;
  top: -20%;
  left: -10%;
  width: 140%;
  height: 120%;
  background:
    conic-gradient(from 240deg at 30% -10%, transparent 0deg, rgba(22, 119, 255, 0.05) 15deg, transparent 30deg, transparent 70deg, rgba(64, 150, 255, 0.04) 85deg, transparent 100deg);
  animation: rayRotate 25s linear infinite;
  pointer-events: none;
}

@keyframes rayRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Gradient orbs — 蓝色系 */
.hero-bg::after {
  content: '';
  position: absolute;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.18;
  background: var(--color-accent);
  top: -250px;
  right: -150px;
  animation: floatOrb 8s ease-in-out infinite;
}

.hero-orb-2 {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.12;
  background: var(--color-accent-light);
  bottom: -150px;
  left: -150px;
  animation: floatOrb 10s ease-in-out 2s infinite reverse;
}

/* Third orb — light blue accent */
.hero-orb-3 {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.08;
  background: #BFDBFE;
  top: 35%;
  left: 45%;
  animation: floatOrb 12s ease-in-out 4s infinite;
}

@keyframes floatOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* Particle canvas */
#particles-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

/* Subtle blue glow for hero content */
.hero-content::before {
  content: '';
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(22, 119, 255, 0.10) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(40px);
  z-index: -1;
}

/* Hero container — single column centered */
.hero .container {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 1280px;
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, var(--color-accent-soft) 0%, rgba(22, 119, 255, 0.04) 100%);
  border: 1px solid rgba(22, 119, 255, 0.22);
  border-radius: 100px;
  font-size: var(--font-sm);
  font-weight: 500;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-6);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px rgba(22, 119, 255, 0.06);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero-title {
  font-size: var(--font-4xl);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-gray-900);
  margin-bottom: var(--space-6);
  text-align: center;
}

.hero-title .highlight {
  display: block;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 50%, var(--color-accent-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--font-lg);
  color: var(--color-gray-600);
  max-width: 100%;
  width: 100%;        /* 移动端防溢出 */
  margin: 0 auto var(--space-8);
  line-height: 1.85;
  text-align: center;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
  justify-content: center;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.9375rem 2rem;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-xl);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 8px 24px rgba(22, 119, 255, 0.32), inset 0 1px 0 rgba(255,255,255,0.15);
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(22, 119, 255, 0.42);
  background: linear-gradient(135deg, #4F8EF7 0%, #1D4ED8 100%);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.9375rem 2rem;
  background: var(--color-white);
  color: var(--color-gray-800);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  transform: translateY(-1px);
}

/* Hero stats */
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8) var(--space-6);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(22, 119, 255, 0.12);
  justify-content: center;
}

.hero-stat {
  position: relative;
}

.hero-stat:not(:last-child)::after {
  content: '';
  position: absolute;
  right: calc(-1 * var(--space-4));
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 32px;
  background: var(--color-gray-200);
}

.hero-stat .num {
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--color-gray-900);
  letter-spacing: -0.03em;
  line-height: 1;
}

.hero-stat .num .plus { 
  color: var(--color-accent);
  font-size: 1.5rem;
}

.hero-stat .label {
  font-size: var(--font-sm);
  color: var(--color-gray-500);
  margin-top: 0.375rem;
  letter-spacing: 0.02em;
}

/* =============================================
   Hero Visual Panel — removed (compact single-column layout)
   ============================================= */
.hero-visual-panel { display: none; }

/* ============================================
   About Section
   ============================================ */
.about {
  background: var(--color-white);
  position: relative;
  z-index: 1;
}

/* Subtle top gradient for smooth transition from Hero */
.about::before {
  content: '';
  position: absolute;
  top: -80px;
  left: 0;
  right: 0;
  height: 160px;
  background: linear-gradient(to bottom, transparent, var(--color-white));
  pointer-events: none;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-card {
  background: linear-gradient(145deg, #ffffff 0%, var(--color-gray-50) 100%);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  border: 1px solid var(--color-gray-100);
  position: relative;
  overflow: hidden;
  box-shadow:
    0 4px 24px rgba(0, 0, 0, 0.04),
    0 1px 3px rgba(0, 0, 0, 0.02);
}

.about-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-red), var(--color-accent));
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.about-tagline {
  font-size: var(--font-2xl);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-4);
  line-height: 1.4;
}

.about-text {
  color: var(--color-gray-500);
  line-height: 1.8;
  margin-bottom: var(--space-6);
  word-break: break-all;  /* 防止长文溢出 */
  overflow-wrap: break-word;
}

.about .section-desc {
  font-size: var(--font-base);
  line-height: 1.7;
  width: 100%;      /* 移动端防溢出 */
  max-width: 100%;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.about-feature .icon-box {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(22, 119, 255, 0.08);
  color: var(--color-accent);
  font-size: 1.1rem;
}

.about-feature .info h4 {
  font-size: var(--font-base);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: 2px;
}

.about-feature .info p {
  font-size: var(--font-sm);
  color: var(--color-gray-400);
}

/* About stats cards */
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.about-stat-card {
  background: linear-gradient(145deg, #ffffff, var(--color-primary-soft));
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  transition: all var(--transition-base);
  box-shadow:
    0 2px 12px rgba(0, 0, 0, 0.04),
    0 0 0 1px rgba(255,255,255,0.5) inset;
}

.about-stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.about-stat-card .num-large {
  font-size: var(--font-3xl);
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.02em;
}

.about-stat-card .label-sm {
  font-size: var(--font-sm);
  color: var(--color-gray-500);
  margin-top: var(--space-1);
}

/* ============================================
   Services Section
   ============================================ */
.services {
  background: var(--color-gray-50);
}

.services-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.services-header .section-desc {
  margin: 0 auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.service-card {
  background: linear-gradient(145deg, #ffffff 0%, var(--color-primary-soft) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  box-shadow:
    0 2px 16px rgba(0, 0, 0, 0.04),
    0 0 0 1px rgba(255,255,255,0.5) inset;
}

.service-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  transform: scaleX(0);
  transition: transform var(--transition-base);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow:
    0 20px 48px rgba(0, 0, 0, 0.08),
    0 8px 20px rgba(26, 92, 202, 0.06);
  border-color: transparent;
}

.service-card:hover::after { transform: scaleX(1); }

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: linear-gradient(135deg, rgba(22, 119, 255, 0.08), rgba(22, 119, 255, 0.03));
}

.service-card h3 {
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-3);
}

.service-card p {
  font-size: var(--font-md);
  color: var(--color-gray-500);
  line-height: 1.7;
}

/* ============================================
   AI Solutions Section — Light Style
   ============================================ */
.ai-solutions {
  background:
    radial-gradient(ellipse 100% 60% at 20% 90%, rgba(22, 119, 255, 0.06) 0%, transparent 55%),
    radial-gradient(ellipse 80% 50% at 85% 10%, rgba(64, 150, 255, 0.05) 0%, transparent 50%),
    linear-gradient(180deg, #FFFFFF 0%, var(--color-primary-soft) 50%, var(--color-primary-light) 100%);
  position: relative;
  overflow: hidden;
}

.ai-solutions::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(22, 119, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 119, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 70%);
  pointer-events: none;
}

.ai-solutions .section-label { color: var(--color-accent); }
.ai-solutions .section-title { color: var(--color-gray-900); }
.ai-solutions .section-desc { color: var(--color-gray-600); }

.ai-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  position: relative;
  z-index: 1;
}

.ai-card {
  background: linear-gradient(145deg, #ffffff 0%, var(--color-primary-soft) 100%);
  border: 1px solid rgba(22, 119, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
  box-shadow: 0 4px 16px -2px rgba(15, 23, 42, 0.04), 0 0 0 1px rgba(255,255,255,0.5) inset;
}

.ai-card:hover {
  background: linear-gradient(145deg, #ffffff 0%, rgba(22, 119, 255, 0.03) 100%);
  border-color: rgba(22, 119, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px -8px rgba(22, 119, 255, 0.15), 0 4px 12px -2px rgba(15, 23, 42, 0.05);
}

.ai-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.ai-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.ai-card-icon.blue {
  background: rgba(22, 119, 255, 0.12);
  color: var(--color-accent);
}

.ai-card-icon.gold {
  background: rgba(201, 169, 110, 0.15);
  color: var(--color-gold);
}

.ai-card-icon.green {
  background: rgba(16, 185, 129, 0.12);
  color: #059669;
}

.ai-card-icon.purple {
  background: rgba(139, 92, 246, 0.12);
  color: #7C3AED;
}

.ai-card h3 {
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--color-gray-900);
}

.ai-card p {
  font-size: var(--font-md);
  color: var(--color-gray-600);
  line-height: 1.7;
}

.ai-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.ai-tag {
  padding: 0.25rem 0.75rem;
  background: var(--color-accent-soft);
  border-radius: 100px;
  font-size: var(--font-xs);
  font-weight: 500;
  color: var(--color-accent-dark);
  border: 1px solid rgba(22, 119, 255, 0.15);
}

/* ============================================
   Products & Services
   Consistent with global design language
   ============================================ */
.business-matrix {
  background:
    radial-gradient(ellipse 80% 60% at 30% 0%, rgba(22, 119, 255, 0.06) 0%, transparent 55%),
    radial-gradient(ellipse 60% 50% at 75% 90%, rgba(64, 150, 255, 0.04) 0%, transparent 50%),
    linear-gradient(180deg, #FFFFFF 0%, var(--color-primary-soft) 50%, var(--color-primary-light) 100%);
  position: relative;
  overflow: hidden;
}

.business-matrix::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(22, 119, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 119, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 70%);
  pointer-events: none;
}

.bm-header {
  text-align: center;
  margin-bottom: var(--space-12);
  position: relative; z-index: 1;
}
.bm-header .section-desc { margin: 0 auto; }

.bm-layout { position: relative; z-index: 1; }

/* ===== Product Cards — match AI card pattern ===== */
.bm-products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.bm-product-card {
  background: linear-gradient(145deg, #ffffff 0%, var(--color-primary-soft) 100%);
  border: 1px solid rgba(22, 119, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
  box-shadow: 0 4px 16px -2px rgba(15, 23, 42, 0.04), 0 0 0 1px rgba(255,255,255,0.5) inset;
}

.bm-product-card:hover {
  background: linear-gradient(145deg, #ffffff 0%, rgba(22, 119, 255, 0.03) 100%);
  border-color: rgba(22, 119, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px -8px rgba(22, 119, 255, 0.15), 0 4px 12px -2px rgba(15, 23, 42, 0.05);
}

/* Card header — icon left, text right (match AI card header) */
.bm-card-hd {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.bm-card-icon-wrap {
  width: 48px; height: 48px;
  border-radius: var(--radius-lg);
  background: rgba(22, 119, 255, 0.12);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.bm-card-icon-wrap svg {
  width: 22px; height: 22px;
  stroke: var(--color-accent);
}

.bm-card-title {
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--color-gray-900);
  letter-spacing: -0.01em;
}
.bm-card-desc {
  font-size: var(--font-md);
  color: var(--color-gray-600);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

/* Product pills — match ai-tag style */
.bm-pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.bm-pill {
  padding: 0.3rem 0.85rem;
  font-size: var(--font-xs);
  font-weight: 500;
  border-radius: 100px;
  white-space: nowrap;
  transition: all var(--transition-fast);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
}
.bm-pill:hover {
  background: var(--color-accent);
  color: #fff;
  transform: translateY(-1px);
}

/* ===== Service Cards — match cred-card pattern ===== */
.bm-services-hub {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-6);
}

.bm-service-card {
  background: linear-gradient(145deg, #ffffff, var(--color-primary-soft));
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-100);
  padding: var(--space-6) var(--space-4) var(--space-5);
  text-align: center;
  transition: all var(--transition-base);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04), 0 0 0 1px rgba(255,255,255,0.5) inset;
}

.bm-service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(22, 119, 255, 0.08), 0 8px 20px rgba(0, 0, 0, 0.04);
}

.bm-svc-hd {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.bm-svc-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.bm-svc-icon svg { width: 18px; height: 18px; }

.bm-svc-icon.blue   { background: rgba(22, 119, 255, 0.12); }
.bm-svc-icon.green  { background: rgba(82, 196, 26, 0.12); }
.bm-svc-icon.cyan   { background: rgba(19, 194, 194, 0.12); }
.bm-svc-icon.orange { background: rgba(250, 140, 22, 0.12); }
.bm-svc-icon.purple { background: rgba(124, 58, 237, 0.12); }

.bm-svc-name {
  font-size: var(--font-sm);
  font-weight: 700;
  color: var(--color-gray-900);
}

.bm-svc-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.bm-pill-sm {
  padding: 0.25rem 0.75rem;
  font-size: var(--font-xs);
  font-weight: 500;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  border-radius: 100px;
  transition: all var(--transition-fast);
}
.bm-pill-sm:hover {
  background: rgba(22, 119, 255, 0.15);
}

/* ============================================
   Technology Stack Section
   ============================================ */
.tech-stack {
  background: var(--color-white);
}

.tech-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.tech-header .section-desc { margin: 0 auto; }

.tech-marquee {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--space-16);
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-6) var(--space-8);
  background: linear-gradient(145deg, #ffffff, var(--color-gray-50));
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-base);
  min-width: 110px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
}

.tech-item:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow:
    0 12px 32px rgba(26, 92, 202, 0.1),
    0 4px 8px rgba(0, 0, 0, 0.04);
  border-color: rgba(26, 92, 202, 0.3);
}

.tech-item .tech-icon {
  font-size: 2rem;
}

.tech-item .tech-name {
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--color-gray-700);
}

/* ============================================
   Cases & Credentials
   ============================================ */
.credentials {
  background: var(--color-gray-50);
}

.creds-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.cred-card {
  background: linear-gradient(145deg, #ffffff, var(--color-primary-soft));
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-base);
  box-shadow:
    0 2px 16px rgba(0, 0, 0, 0.04),
    0 0 0 1px rgba(255,255,255,0.5) inset;
}

.cred-card:hover {
  transform: translateY(-4px);
  box-shadow:
    0 16px 40px rgba(26, 92, 202, 0.08),
    0 8px 20px rgba(0, 0, 0, 0.04);
}

.cred-card .cred-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-4);
}

.cred-card .cred-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-gray-900);
  margin-bottom: var(--space-2);
}

.cred-card .cred-label {
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

/* ============================================
   CTA Section — Light Tech Style
   ============================================ */
.cta-section {
  background:
    radial-gradient(ellipse at 80% 50%, rgba(22, 119, 255, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, rgba(64, 150, 255, 0.08) 0%, transparent 50%),
    linear-gradient(135deg, var(--color-primary-soft) 0%, var(--color-primary-lighter) 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(150px);
  background: var(--color-accent);
  opacity: 0.15;
  top: -100px;
  right: -150px;
}

.cta-section::after {
  content: '';
  position: absolute;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  filter: blur(120px);
  background: var(--color-accent-light);
  opacity: 0.12;
  bottom: -80px;
  left: -80px;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 2.25rem;                       /* WeChat/旧浏览器回落 */
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-gray-900);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.cta-content p {
  font-size: var(--font-lg);
  color: var(--color-gray-600);
  margin-bottom: var(--space-8);
}

/* ============================================
   Footer — Light Style
   ============================================ */
.footer {
  background: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
  padding: var(--space-20) 0 var(--space-8);
  color: var(--color-gray-400);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(22, 119, 255, 0.3), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.footer-brand .logo-icon { margin-bottom: var(--space-4); }
.footer-brand .logo-text .zh { color: var(--color-white); }
.footer-brand .logo-text .en { color: var(--color-gray-400); }

.footer-brand .brand-desc {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  line-height: 1.7;
  margin-top: var(--space-4);
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-6);
  letter-spacing: 0.04em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  transition: color var(--transition-fast);
}

.footer-links a:hover { color: var(--color-white); }

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-size: 0.875rem;
}

.footer-contact-item .fc-icon {
  flex-shrink: 0;
  color: var(--color-accent-light);
  margin-top: 2px;
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: #ffffff;
}

/* ============================================
   Scroll Animations
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }
.reveal-delay-7 { transition-delay: 0.7s; }
.reveal-delay-8 { transition-delay: 0.8s; }

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1280px) {
  .hero .container { gap: var(--space-8); }
}

@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: var(--space-12); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-grid { grid-template-columns: 1fr; }
  .creds-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { gap: var(--space-6); }
  .bm-services-hub { grid-template-columns: repeat(3, 1fr); }
  .bm-service-card { padding: var(--space-5) var(--space-4); }
}

@media (max-width: 900px) {
  .hero { padding-top: 7rem; }
  .hero .container { padding-top: var(--space-4); padding-bottom: var(--space-4); }
  .hero-content { max-width: 100%; }
  .hero-title { font-size: 2.25rem; font-size: clamp(2rem, 6vw, 3rem); }
  .bm-products-grid { grid-template-columns: 1fr; }
  .bm-services-hub { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  
  /* 移动端 nav-inner 布局 */
  .nav-inner {
    padding: 0 var(--space-4);
  }
  
  /* Logo 区域在移动端缩小，留出空间给汉堡按钮 */
  .nav-logo {
    gap: var(--space-2);
    flex: 1;
    min-width: 0; /* 允许 flex 收缩 */
    overflow: hidden;
    /* 最大宽度确保 toggle 有足够空间 (44px + 32px padding) */
    max-width: calc(100% - 80px);
  }
  
  /* Logo 图片在移动端小一点 */
  .logo-img {
    height: 34px;
  }
  
  /* 文字部分允许截断 */
  .logo-text {
    overflow: hidden;
    min-width: 0;
  }
  
  .logo-text .zh {
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  
  .logo-text .en {
    font-size: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
  }
  
  .bm-products-grid { grid-template-columns: 1fr; }
  .bm-services-hub { grid-template-columns: 1fr 1fr; }
  
  .services-grid { grid-template-columns: 1fr; }
  .creds-grid { grid-template-columns: repeat(2, 1fr); }
  
  /* About stats: 2列×3行，防止3列过窄 */
  .about-stats { grid-template-columns: repeat(2, 1fr); gap: var(--space-3); }
  .about-stat-card { padding: var(--space-4); }
  .about-stat-card .num-large { font-size: 1.75rem; }
  
  .about-features { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  
  /* Hero stats: 2列×2行 布局，不再宽于容器 */
  .hero-stats { 
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    padding-top: var(--space-6);
  }
  .hero-stat { text-align: center; }
  .hero-stat:not(:last-child)::after { display: none; }
  .hero-stat .num { font-size: 1.75rem; }
  
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn-outline, .hero-actions .btn-primary { text-align: center; justify-content: center; }
  
  .tech-marquee { gap: var(--space-4); }
  .tech-item { min-width: 80px; padding: var(--space-4) var(--space-5); }
  
  .section { padding: var(--space-12) 0; }
  .container { padding: 0 var(--space-4); }
  
  /* Section titles: 移动端收窄 */
  .section-title { font-size: 1.625rem; letter-spacing: -0.01em; }
  .section-desc { font-size: var(--font-md); }
  
  /* 产品卡片移动端 padding 收紧 */
  .bm-product-card { padding: var(--space-6); }
  .bm-card-title { font-size: var(--font-lg); }
  .bm-card-desc { font-size: var(--font-sm); }
  
  /* AI 解决方案卡片移动端 */
  .ai-card { padding: var(--space-6); }
  
  .footer-bottom { flex-direction: column; gap: var(--space-3); text-align: center; }
}

/* ============================================
   Mobile menu — Popover 弹出式
   ============================================ */
/* 半透明遮罩 */
.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 998;
  background: rgba(15, 23, 42, 0.2);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  animation: fadeIn 0.15s ease;
}
.nav.open .nav-backdrop { display: block; }

/* 弹出菜单卡片 */
.nav.open .nav-links {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: calc(100% + 6px);
  right: var(--space-4);
  width: 220px;
  max-width: calc(100vw - 32px);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-radius: 16px;
  padding: var(--space-2);
  gap: 1px;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.14), 0 4px 16px rgba(15, 23, 42, 0.06);
  border: 1px solid rgba(222, 226, 232, 0.5);
  z-index: 999;
  animation: popoverIn 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  transform-origin: top right;
  overflow: hidden;
}

@keyframes popoverIn {
  from {
    opacity: 0;
    transform: translateY(-6px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* 弹出菜单内的链接 */
.nav.open .nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.7rem var(--space-3);
  border-radius: 10px;
  color: var(--color-gray-700);
  border-bottom: none;
  transition: all var(--transition-fast);
}
.nav.open .nav-link:hover {
  color: var(--color-accent);
  background: rgba(22, 119, 255, 0.06);
}

.nav.open .nav-link::after { display: none; }

/* 弹出菜单内的 CTA 按钮 */
.nav.open .nav-cta {
  margin-top: var(--space-2);
  display: flex;
  justify-content: center;
  width: 100%;
  border-radius: 10px;
  padding: 0.65rem 1rem;
  font-size: 0.875rem;
}

/* 菜单打开时 toggle X 按钮颜色 */
.nav.open .nav-toggle span {
  background: var(--color-gray-900);
}

/* ============================================
   Horizontal Rule
   ============================================ */
.section-divider {
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-red), var(--color-accent));
  border-radius: 2px;
  margin-bottom: var(--space-6);
}

/* ============================================
   WeChat / 旧浏览器兼容性 — CSS 微调
   ============================================ */
/* 微信浏览器：强制不透明白底（无 backdrop-filter） */
.is-wechat .nav,
.is-wechat .nav.scrolled {
  background: rgba(255, 255, 255, 0.97) !important;
}
/* 微信浏览器：减少动画复杂度 */
.is-wechat .reveal {
  transition-duration: 0.35s !important;
}
/* 字体加载完成后恢复正常字间距 */
.fonts-loaded body {
  font-family: var(--font-sans);
}
/* Grid gap 不支持时的 margin 回落（旧 iOS Safari） */
.is-old-webkit .ai-grid {
  gap: 0;
}
.is-old-webkit .ai-card {
  margin: var(--space-3);
}

/* ============================================
   全局溢出保护 — 防止任何元素超宽
   ============================================ */
*, *::before, *::after {
  max-width: 100%;
  box-sizing: border-box;
}

/* 移动端 480px 以下极小屏补丁 */
@media (max-width: 480px) {
  .container { padding: 0 var(--space-3); }
  
  /* Hero 区 */
  .hero { padding-top: 5.5rem; }
  .hero-title { font-size: 1.75rem; letter-spacing: -0.01em; }
  .hero-badge { font-size: 0.7rem; padding: 0.4rem 1rem; }
  
  /* Stats 2列 */
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
    padding-top: var(--space-5);
  }
  .hero-stat .num { font-size: 1.5rem; }
  .hero-stat .label { font-size: 0.7rem; }
  
  /* About 区 */
  .about-stats { grid-template-columns: repeat(2, 1fr); gap: var(--space-2); }
  .about-stat-card { padding: var(--space-3) var(--space-2); }
  .about-stat-card .num-large { font-size: 1.5rem; }
  .about-stat-card .label-sm { font-size: 0.7rem; }
  
  /* 产品与服务 */
  .bm-services-hub { grid-template-columns: 1fr 1fr; }
  .bm-service-card { padding: var(--space-4) var(--space-3); }
  
  /* 资质成就 */
  .creds-grid { grid-template-columns: repeat(2, 1fr); }
  .cred-card { padding: var(--space-4) var(--space-3); }
  .cred-num { font-size: 1.5rem; }
  
  /* 页脚 */
  .footer-contact-item { font-size: 0.75rem; }
  
  /* 防止图标行溢出 */
  .tech-marquee { gap: var(--space-3); }
  .tech-item { min-width: 70px; padding: var(--space-3) var(--space-3); }
}
</style>
</head>
<body>

<!-- ============================================
     Navigation
     ============================================ -->
<nav class="nav" id="navbar">
  <div class="nav-inner">
    <a href="#" class="nav-logo">
      <div class="logo-icon">
        <img src="logo-new.jpg" alt="武汉志昆科技有限公司" class="logo-img">
      </div>
      <div class="logo-text">
        <span class="zh">武汉志昆科技</span>
        <span class="en">WUHAN ZKUN TECH</span>
      </div>
    </a>
    <div class="nav-links" id="navLinks">
      <a href="#home" class="nav-link">首页</a>
      <a href="#about" class="nav-link">关于我们</a>
      <a href="#services" class="nav-link">产品服务</a>
      <a href="#ai" class="nav-link">AI 解决方案</a>
      <a href="#tech" class="nav-link">技术实力</a>
      <a href="#contact" class="nav-link">联系我们</a>
      <a href="#contact" class="nav-cta">
        立即咨询
        <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round"><line x1="5" y1="12" x2="19" y2="12"/><polyline points="12 5 19 12 12 19"/></svg>
      </a>
    </div>
    <button class="nav-toggle" id="navToggle" aria-label="切换菜单">
      <span></span><span></span><span></span>
    </button>
    <div class="nav-backdrop" id="navBackdrop"></div>
  </div>
</nav>

<!-- ============================================
     Hero Section
     ============================================ -->
<section class="hero" id="home">
  <div class="hero-bg-layer">
    <div class="hero-bg">
      <div class="light-rays"></div>
    </div>
    <div class="hero-orb-2"></div>
    <div class="hero-orb-3"></div>
    <canvas id="particles-canvas"></canvas>
  </div>
  <div class="hero-vignette"></div>
  <div class="container">
    <div class="hero-content">
      <div class="hero-badge">
        <span class="dot"></span>
        高新技术企业 · 双软认证 · AI原生开发
      </div>
      <h1 class="hero-title">
        AI赋能企业<br>
        <span class="highlight">数智化转型</span>
      </h1>
      <p class="hero-subtitle">
        行业深耕十余年，聚焦教育 · 企业管理。依托重点高校专家团队，为企业提供AI大模型本地化部署、数字化转型咨询与定制化软件解决方案，助力企业在智能时代赢得先机。
      </p>
      <div class="hero-actions">
        <a href="#contact" class="btn-primary">
          预约演示
          <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round"><line x1="5" y1="12" x2="19" y2="12"/><polyline points="12 5 19 12 12 19"/></svg>
        </a>
        <a href="#services" class="btn-outline">
          了解我们的服务
        </a>
      </div>
      <div class="hero-stats">
        <div class="hero-stat">
          <div class="num">12<span class="plus">+</span></div>
          <div class="label">年行业深耕</div>
        </div>
        <div class="hero-stat">
          <div class="num">1000<span class="plus">+</span></div>
          <div class="label">服务客户</div>
        </div>
        <div class="hero-stat">
          <div class="num">58<span class="plus">+</span></div>
          <div class="label">软件著作权</div>
        </div>
        <div class="hero-stat">
          <div class="num">1707</div>
          <div class="label">芝麻信用分</div>
        </div>
      </div>
    </div>
  </div>
</section>

<!-- ============================================
     About Section
     ============================================ -->
<section class="section about" id="about">
  <div class="container">
    <div class="about-grid">
      <div class="reveal">
        <span class="section-label">关于志昆</span>
        <h2 class="section-title">
          始于2012年<br>
          <span class="accent">专注软件与AI研发</span>的创新高科技企业
        </h2>
        <div class="section-divider"></div>
        <p class="section-desc">
          武汉志昆科技有限公司成立于2012年，三轮通过国家高新技术企业复审，获评科技小巨人、双优双创、创新型中小企业，拥有双软认证。深耕行业十余年，基于新一代AI技术自主研发AI原生造物平台，覆盖教育、企业管理等多场景软件服务。
        </p>
        <div class="about-features">
          <div class="about-feature">
            <div class="icon-box">
              <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"/><circle cx="9" cy="7" r="4"/><path d="M23 21v-2a4 4 0 0 0-3-3.87"/><path d="M16 3.13a4 4 0 0 1 0 7.75"/></svg>
            </div>
            <div class="info">
              <h4>高校专家智库</h4>
              <p>大学产学研基地</p>
            </div>
          </div>
          <div class="about-feature">
            <div class="icon-box">
              <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><rect x="3" y="3" width="18" height="18" rx="2"/><line x1="3" y1="9" x2="21" y2="9"/><line x1="9" y1="21" x2="9" y2="9"/></svg>
            </div>
            <div class="info">
              <h4>全流程项目管理</h4>
              <p>一站式闭环</p>
            </div>
          </div>
          <div class="about-feature">
            <div class="icon-box">
              <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><polyline points="22 12 18 12 15 21 9 3 6 12 2 12"/></svg>
            </div>
            <div class="info">
              <h4>敏捷开发体系</h4>
              <p>Scrum/Kanban双模 · 快速迭代交付</p>
            </div>
          </div>
          <div class="about-feature">
            <div class="icon-box">
              <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><circle cx="12" cy="12" r="10"/><path d="M12 6v6l4 2"/></svg>
            </div>
            <div class="info">
              <h4>行业深耕十余年</h4>
              <p>教育 · 企业管理</p>
            </div>
          </div>
          <div class="about-feature">
            <div class="icon-box">
              <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><path d="M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z"/><path d="M9 12l2 2 4-4"/></svg>
            </div>
            <div class="info">
              <h4>等保合规安全</h4>
              <p>数据不出网 · 服务高安全行业客户</p>
            </div>
          </div>
          <div class="about-feature">
            <div class="icon-box">
              <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><path d="M12 20h9"/><path d="M16.5 3.5a2.121 2.121 0 0 1 3 3L7 19l-4 1 1-4L16.5 3.5z"/></svg>
            </div>
            <div class="info">
              <h4>定制化解决方案</h4>
              <p>拒绝模板化 · 与业务深度匹配</p>
            </div>
          </div>
        </div>
      </div>
      <div class="reveal reveal-delay-2">
        <div class="about-stats">
          <div class="about-stat-card">
            <div class="num-large">8+</div>
            <div class="label-sm">所高校长期合作</div>
          </div>
          <div class="about-stat-card">
            <div class="num-large">15+</div>
            <div class="label-sm">人技术团队</div>
          </div>
          <div class="about-stat-card">
            <div class="num-large">1000+</div>
            <div class="label-sm">项目交付</div>
          </div>
          <div class="about-stat-card">
            <div class="num-large">95%</div>
            <div class="label-sm">用户满意度</div>
          </div>
          <div class="about-stat-card">
            <div class="num-large">7×24</div>
            <div class="label-sm">运维保障</div>
          </div>
          <div class="about-stat-card">
            <div class="num-large">99.9%</div>
            <div class="label-sm">系统可用率</div>
          </div>
        </div>
      </div>
    </div>
  </div>
</section>

<!-- ============================================
     Products & Services Hub
     ============================================ -->
<section class="section business-matrix" id="services">
  <div class="container">
    <div class="bm-header reveal">
      <span class="section-label">产品与服务</span>
      <h2 class="section-title">十年以上 · 软件与人工智能服务商</h2>
      <p class="section-desc">覆盖教育、人工智能、企业数字化全场景，沉淀行业 know-how 与技术能力</p>
    </div>

    <div class="bm-layout">
      <!-- 核心产品 -->
      <div class="bm-products-grid">
        <div class="bm-product-card reveal">
          <div class="bm-card-hd">
            <div class="bm-card-icon-wrap"><svg viewBox="0 0 24 24" fill="none" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"><path d="M4 19.5A2.5 2.5 0 0 1 6.5 17H20"/><path d="M6.5 2H20v20H6.5A2.5 2.5 0 0 1 4 19.5v-15A2.5 2.5 0 0 1 6.5 2z"/><line x1="8" y1="7" x2="16" y2="7"/><line x1="8" y1="11" x2="13" y2="11"/></svg></div>
            <h3 class="bm-card-title">教育信息化</h3>
          </div>
          <p class="bm-card-desc">深耕教育信息化领域十余年，从高校教务管理、在线评教、档案追踪到自助申报与科研项目管理，构建覆盖教学管理全流程的智慧校园整体解决方案。系统历经多所高校真实高并发选课与多校区协同场景验证，稳定承载万级师生日常教学运作，助力教育数字化转型落地见效。</p>
          <div class="bm-pill-grid">
            <div class="bm-pill">高校教务系统</div>
            <div class="bm-pill">评教系统</div>
            <div class="bm-pill">档案追踪</div>
            <div class="bm-pill">自助申报</div>
            <div class="bm-pill">项目管理</div>
            <div class="bm-pill">在线培训考试</div>
          </div>
        </div>
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    }
    
    reset() {
      this.x = Math.random() * canvas.width;
      this.y = -10;
      this.size = Math.random() * 1.5 + 0.5;
      this.speedY = Math.random() * 0.4 + 0.1;
      this.speedX = (Math.random() - 0.5) * 0.3;
      this.opacity = Math.random() * 0.5 + 0.1;
    }
    
    update() {
      this.y += this.speedY;
      this.x += this.speedX;
      
      if (this.y > canvas.height + 10) {
        this.reset();
        this.y = -10;
      }
      
      if (this.x > canvas.width + 10) this.x = -10;
      if (this.x < -10) this.x = canvas.width + 10;
    }
    
    draw() {
      ctx.beginPath();
      ctx.arc(this.x, this.y, this.size, 0, Math.PI * 2);
      ctx.fillStyle = `rgba(64, 150, 255, ${this.opacity})`;
      ctx.fill();
    }
  }

  function init() {
    resize();
    const count = Math.min(Math.floor(window.innerWidth * 0.05), 80);
    particles = Array.from({ length: count }, () => new Particle());
  }

  function animate() {
    ctx.clearRect(0, 0, canvas.width, canvas.height);
    
    // Draw connecting lines between nearby particles
    for (let i = 0; i < particles.length; i++) {
      for (let j = i + 1; j < particles.length; j++) {
        const dx = particles[i].x - particles[j].x;
        const dy = particles[i].y - particles[j].y;
        const dist = Math.sqrt(dx * dx + dy * dy);
        
        if (dist < 120) {
          ctx.beginPath();
          ctx.moveTo(particles[i].x, particles[i].y);
          ctx.lineTo(particles[j].x, particles[j].y);
          ctx.strokeStyle = `rgba(22, 119, 255, ${0.06 * (1 - dist / 120)})`;
          ctx.lineWidth = 0.5;
          ctx.stroke();
        }
      }
    }
    
    particles.forEach(p => { p.update(); p.draw(); });
    animationId = requestAnimationFrame(animate);
  }

  window.addEventListener('resize', init);
  init();
  animate();
})();

/* ============================================
   Navbar Scroll Effect
   ============================================ */
(function() {
  const nav = document.getElementById('navbar');
  let lastScroll = 0;
  
  window.addEventListener('scroll', () => {
    const currentScroll = window.pageYOffset;
    if (currentScroll > 60) {
      nav.classList.add('scrolled');
    } else {
      nav.classList.remove('scrolled');
    }
    lastScroll = currentScroll;
  });
})();

/* ============================================
   Mobile Menu Toggle — Popover
   ============================================ */
(function() {
  const toggle = document.getElementById('navToggle');
  const nav = document.getElementById('navbar');
  const links = document.getElementById('navLinks');
  const backdrop = document.getElementById('navBackdrop');
  
  if (!toggle || !nav || !links) return;

  function closeMenu() {
    nav.classList.remove('open');
    document.body.style.overflow = '';
  }
  function openMenu() {
    nav.classList.add('open');
    document.body.style.overflow = 'hidden';
  }
  
  toggle.addEventListener('click', (e) => {
    e.stopPropagation();
    nav.classList.contains('open') ? closeMenu() : openMenu();
  });
  
  // 点击遮罩层关闭
  if (backdrop) {
    backdrop.addEventListener('click', closeMenu);
  }
  
  // 点击菜单链接后关闭
  links.querySelectorAll('a').forEach(link => {
    link.addEventListener('click', closeMenu);
  });
  
  // Escape 键关闭
  document.addEventListener('keydown', (e) => {
    if (e.key === 'Escape' && nav.classList.contains('open')) {
      closeMenu();
    }
  });
})();

/* ============================================
   Scroll Reveal Animations
   ============================================ */
(function() {
  const observer = new IntersectionObserver((entries) => {
    entries.forEach(entry => {
      if (entry.isIntersecting) {
        entry.target.classList.add('visible');
      }
    });
  }, {
    threshold: 0.15,
    rootMargin: '0px 0px -40px 0px'
  });
  
  document.querySelectorAll('.reveal').forEach(el => {
    observer.observe(el);
  });
})();

/* ============================================
   Smooth Anchor Scroll Offset
   ============================================ */
(function() {
  document.querySelectorAll('a[href^="#"]').forEach(anchor => {
    anchor.addEventListener('click', function(e) {
      e.preventDefault();
      const target = document.querySelector(this.getAttribute('href'));
      if (target) {
        const offset = 80;
        const position = target.getBoundingClientRect().top + window.pageYOffset - offset;
        window.scrollTo({ top: position, behavior: 'smooth' });
      }
    });
  });
})();

/* ============================================
   WeChat / 旧浏览器兼容性修复
   ============================================ */
(function() {
  var ua = navigator.userAgent || '';
  var isWeChat = /MicroMessenger/i.test(ua);
  var isOldWebKit = /webkit/i.test(ua) && !/chrome/i.test(ua);
  
  // 1. 修复微信/旧浏览器 100vh 被地址栏遮挡的问题
  function fixViewportHeight() {
    var vh = window.innerHeight * 0.01;
    document.documentElement.style.setProperty('--vh', vh + 'px');
  }
  fixViewportHeight();
  window.addEventListener('resize', fixViewportHeight);
  window.addEventListener('orientationchange', function() {
    setTimeout(fixViewportHeight, 100);
  });

  // 2. 补充 body 标签标识，方便针对微信做 CSS 微调
  if (isWeChat) {
    document.documentElement.classList.add('is-wechat');
  }
  if (isOldWebKit) {
    document.documentElement.classList.add('is-old-webkit');
  }

  // 3. 微信浏览器中禁用粒子动画以提升性能
  if (isWeChat) {
    var canvas = document.getElementById('particleCanvas');
    if (canvas) {
      canvas.style.display = 'none';
    }
    // 禁用 body 的固定伪元素（微信 X5 渲染性能差）
    try {
      var style = document.createElement('style');
      style.textContent = 'body::before, body::after { display: none !important; }';
      document.head.appendChild(style);
    } catch(e) {}
  }

  // 4. 确保 Google Fonts 加载失败时文字仍可读
  if (!document.fonts) {
    document.documentElement.classList.add('no-font-loading');
    // 粗暴兜底：如果 3 秒后字体还没加载完，强制用系统字体
    setTimeout(function() {
      document.documentElement.classList.add('fonts-loaded');
    }, 3000);
  } else {
    document.fonts.ready.then(function() {
      document.documentElement.classList.add('fonts-loaded');
    }).catch(function() {
      document.documentElement.classList.add('fonts-loaded');
    });
    // 超时保护
    setTimeout(function() {
      document.documentElement.classList.add('fonts-loaded');
    }, 4000);
  }
})();
</script>

</body>
</html>
